Wetland Considerations for Real Estate
Jo Drake Keim, Vice President Allyson Graziano, Project Manager
Wetland Considerations for Real Estate Jo Drake Keim, Vice - - PowerPoint PPT Presentation
Wetland Considerations for Real Estate Jo Drake Keim, Vice President Allyson Graziano, Project Manager Introduction Separation Systems Consultants, Inc. (SSCI) is a multi-disciplinary environmental consulting, engineering, construction, and
Jo Drake Keim, Vice President Allyson Graziano, Project Manager
Separation Systems Consultants, Inc. (SSCI) is a multi-disciplinary
environmental consulting, engineering, construction, and field remediation firm with diverse capabilities and experience.
Women-Owned and Disadvantaged Business Enterprise (W/DBE), Historically
Underutilized Business (HUB), and Small Business Enterprise (SBE).
Over 30 years of work in southeast Texas. Licenses: Texas Board of Professional Engineers, Texas Board of Professional
Geoscientists, Asbestos Management Planner Agency, Lead Firm, and Mold Assessment Company.
Jo has a Master of Science degree from the University of Houston-Clear Lake
in Environmental Management and a Bachelor of Science degree from Texas A&M University in Political Science, focusing on environmental regulations.
She has over 4 years of experience at SSCI and over 25 years of experience in
environmental consulting.
She has completed over 100 projects assessing site conditions for
municipalities, universities, and state agencies.
Along with being the Vice President, Jo serves as the senior project manager
and technical lead on wetland delineations, jurisdictional determinations with the USACE, permitting, and mitigation.
Allyson has a Bachelor of Science degree from the University of Louisiana at
Lafayette in Resource Biology and Biodiversity.
She has 2 years of experience at SSCI and 5 years of experience in
environmental consulting.
She manages Phase I Environmental Site Assessments, NEPA reporting, and
detention pond inspections and permitting.
She has reviewed several wetland delineation reports and worked closely with
the USACE for jurisdictional determinations, permitting, and the mitigation process.
Wetlands are protected by the Clean Water Act of 1972 and are not fillable
without a permit and prohibits the discharge of materials without a permit.
The permit program for discharges of fill material is under the Section 404 and is
administered by the U.S. Army Corps of Engineers (USACE) and authorized by the U.S. Environmental Protection Agency (EPA)
This act applies to “navigable waters”, defined as “Wetlands/Waters of the
U.S.” (WOTUS).
Once signed off by the USACE and EPA, the wetland delineation report and
permits are valid for 5 years!
Three (3) distinct criteria: 1. Hydrology 2. Vegetation 3. Soils
This Photo by Unknown Author is licensed under CC BY-SA
Top 12 inches of soil must be
saturated with water
Two (2) main sources of water: 1. Surface water (pond, lakes,
rivers, streams, oceans, etc.)
2. Ground water (beneath
earth’s surface)
Primary indicators: one (1)
indicator is necessary to be a positive indication of wetland hydrology.
Surface water Water marks Saturation within 12 inches of
surface
Drainage pattern Inundation Drift lines Sediment deposits Algal mat or crust Water stained leaves Oxidized rhizospheres along
living roots
Secondary indicators: if no
primary indicators are
secondary indicators must be
wetland
Surface soil cracks Drainage patterns Moss trim lines Crayfish burrows Saturation visible on aerial
imagery
This Photo by Unknown Author is licensed under CC BY
National Wetland Plant List (NWPL) is a list of wetland plants with assigned
indicator statuses.
A. Obligate Wetland (OBL): plants that always occur in areas of prolonged flooding
B. Facultative Wetland (FACW): plants that usually occur in areas of prolonged
flooding or saturated soils. May occur in non-wetlands. (example: green ash)
C. Facultative (FAC): plants that occur in wetlands and non-wetlands. (example:
greenbriar)
D. Facultative Upland (FACU): plants that occur more often in non-wetland
E. Obligate Upland (UPL): plant that always occur in non-wetlands. (example: pine)
Hydric soil: soil that is saturated, flooded, or
ponded long enough to develop anaerobic conditions.
Hydric soils develop because:
Soil oxygen is rapidly depleted due to chemical
and biological
Anaerobic conditions Lack of oxygen has a number of effects on
biological and chemical processes in soil.
Munsell Soil Color Book
USDA Natural Resources Conservation Service – Web Soil Survey (WSS) USGS Topographic Maps Google Earth and Historical Aerial Photographs National Wetland Inventory Maps FEMA Floodplain Maps
No impacts to Wetlands/Waters of the U.S. (WOTUS), no permit needed Impacts less than 0.5-acre to be permitted under Nationwide permit, with
minimal impacts and no mitigation necessary. Pre-Construction Notification (PCN) may be required.
Impacts less than 0.5-acre to be permitted under Nationwide permit, but
more than 0.1-acre wetland impacts or greater than 200 linear feet streams, mitigation plan is necessary. PCN may be required.
Impacts over 0.5-acre to be permitted under Individual Permit (IP), mitigation
plan necessary, and Public Notice review as part of the IP process.
Approved JD
An official USACE determination
that jurisdictional WOTUS are either present or absent on a property.
Valid for 5 years (unless new
information is identified).
Long process but may be worth it
to avoid mitigation costs.
Preliminary JD
A PJD assumes all wetlands and
WOTUS are assumed jurisdictional.
Shorter process
USACE’s determination of the presence and/or extent of WOTUS on a property.
A Nationwide General Permit
(NWP) is issued when projects have minimal impacts.
An Individual permit (IP) is issued
when projects have more than minimal impacts and involve a more comprehensive public interest review.
Clean Water Act Section 404 USACE Nationwide Permits Pre-Construction Notification Individual Permits Permit Application with Alternative Analysis
There are 54 NWPs. Each with its own rules. Example: NWP 29 – Residential Developments
Limit of 0.5-acres or 300 linear feet of stream bed. (losses of stream bed are
applied to the 0.5-acre limit)
PCN required for all activities.
Example: NWP 39 – Commercial and Institutional Developments
Limit of 0.5-acres or 300 linear feet of stream bed. (losses of stream bed are
applied to the 0.5-acre limit)
PCN required Does not authorize construction of new golf courses or new ski areas. Authorizes
the construction of oil or gas wells.
A PCN is a 10-page form (Form-4345) from the USACE that must be completed
prior to construction. It outlines various project related information.
Includes: Site plan (engineering drawings), fill volume calculations, and State
Historical Preservation Office (SHPO) clearance letter.
From the USACE website: “The Pre-Construction Notification form helps
regulators from the state and federal agencies better understand and evaluate the impacts of activities that you propose to do in or around streams, wetlands, or other waters that may affect water quality, the health
drainage area.”
An Individual permit (IP) is issued when projects have more than minimal
impacts and involve a more comprehensive public interest review.
The USACE evaluates environmental and socioeconomic effects. Includes:
Project Design Project Purpose and Need Jurisdictional Determination Threatened & Endangered Species Assessment Cultural Resources Evaluation Environmental Assessment Alternatives Project Mitigation Plan State Water Quality Certification
Requires a 30-day Public Notice.
Permit Type Estimated Processing Time AJD or PJD 3 – 4 months NWP 30 days NWP with PCN 60 days IP 8 – 12 months
Besides USACE, you must submit a permit or have approval from other agencies:
US Environmental Protection Agency (EPA) – Makes sure the project is environmentally safe
(Clean Water Act)
US Fish and Wildlife Services (USFWS) – Checks the threatened and endangered species list for
the project area (Endangered Species Act)
May also coordinate with Texas Parks and Wildlife Department (TPWD) State Historic Preservation Office (SHPO) / Texas Historical Commission (THC) – Checks if there
are any historical landmarks, buildings, Indian burial grounds, etc. near or on the project area (National Historic Preservation Act)
Texas General Land Office (TX GLO) – Checks for compliance with the Coastal Zone Management
Program and not disturbing the coastal areas (Coastal Zone Management Act)
Local Municipalities:
Harris County Flood Control District (HCFCD) Texas Department of Transportation (TXDOT)
Used when altering wetlands. Must mitigate impacts of altered or destroyed wetlands.
Mitigation is not possible - It is best to conduct a wetland delineation PRIOR
to site design planning. This way, the wetlands will be mapped out for the project area and you are able to design around the jurisdictional wetlands.
Avoidance is not possible – If there is no possible way to design around the
jurisdictional wetlands, then mitigation is necessary. A mitigation plan will be in place and coordination with the mitigation banks will begin.
Physical, chemical, and biological processes that characterize wetland
ecosystems.
How pristine are the wetlands or streams found? Completing this will determine how many credits are needed for mitigation.
The National Mitigation Banking Association (NMBA) defines mitigation banking
as “the restoration, creation, enhancement, or preservation of a wetland, stream, or other habitat area undertaken expressly for the purpose of compensating for unavoidable resource losses in advance of development actions, when such compensation cannot be achieved at the development site
Mitigation banking is a system of credits to compensate for the ecological loss
loss to the environment.
Wetland credits and stream credits.